Bosch Rexroth DDS2.1-W200-D (DDS02.1-W200-D) Digital Servo Drive
May 29, 2026

Bosch Rexroth DDS2.1-W200-D (DDS02.1-W200-D) Digital Servo Drive

Product Description The DDS2.1-W200-D is a high-power, internally air-cooled digital AC servo drive for the DIAX02 system (Rexroth Indramat). It delivers 200 A continuous / 400 A peak current, uses cabinet convection cooling (W‑type), and comes standard with DSF digital servo feedback for heavy‑duty motion control in high‑power automation applications.

Description

Model Definition

DDS2.1: DIAX02 drive series (firmware v2.x)

W: Internal cabinet air cooling (convection, no external fan)

200: 200 A continuous, 400 A peak current

D: DSF digital servo feedback interface (standard)

Technical Specifications

Electrical

DC bus: 300 V DC ±15% (from TVD/TVM power supplies)

Control supply: 24 V DC (20–28 V DC)

Continuous current: 200 A

Peak current: 400 A (short‑term)

Current loop: 125 μs

Speed loop: 500 μs

Position loop: 2 ms

Power dissipation: ~800 W (@200 A)

Compatible motors: MDD/MKD synchronous, LAR/LAF linear, 2AD series

Mechanical & Environmental

Cooling: Internal cabinet airflow (W‑type, convection)

Protection class: IP20 (front), IP10 (overall)

Operating temperature: 0 °C to +45 °C (20% derating @55 °C)

Storage temperature: -30 °C to +85 °C

Max altitude: 1000 m (35% derating above)

Dimensions (W×H×D): 150 mm × 408 mm × 180 mm

Weight: ~8.5 kg

Interface and Communication Configuration

Motor feedback: X4 (DSF digital servo encoder, dual‑channel)

System bus: Shared 300 V DC bus for multi‑axis parallel operation

Communication: Expansion slots U1–U5 (analog, fieldbus, or SERCOS modules)

Digital I/O: 6 isolated inputs / 3 isolated outputs (base unit)

Service port: RS232 (IndraWorks setup/diagnostics)

Core Functions

Three‑loop control (current/speed/position) for high precision

High‑power W‑type internal cooling for space‑saving cabinet installation

Integrated DSF digital feedback for accurate motor positioning

Modular design for flexible communication/feedback upgrades

Comprehensive protection: over/undervoltage, overcurrent, short circuit, overheat, feedback loss

Torque/speed/position control modes

Application Scenarios

Heavy‑duty CNC machine main spindles and axes

Large textile, printing, and packaging machinery with extreme loads

High‑power material handling and gantry systems

DIAX02 system upgrades requiring 200 A continuous current

Automation equipment with limited cabinet space and no external cooling

Usage and Maintenance

Ensure cabinet airflow ≥ 500 m³/h for internal cooling

Keep ambient ≤45 °C to avoid derating

Complete power/feedback/control wiring before power‑on

Configure via IndraWorks (match motor/load parameters)

Clean heatsink/air passages every 6 months; inspect terminals

Calibrate control loops/feedback annually


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